Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A communication device for use in a wireless communication system, comprising: circuitry configured to receive a reference signal from a base station to determine a channel between the communication device and the base station; determine a reference direction satisfying a predetermined condition as a representative direction of the channel; determine one or more parameters reflecting channel characteristic(s) associated with the communication device, the one or more parameters including identity of the representative direction; and acquire scheduling information from the base station for data transmission through the channel on specific transmission resources, wherein Multi-User Multi-Input Multi-Output MU-MIMO is supported, a precoding matrix is calculated based on the channel characteristic(s), to reduce interference by other communication device having identical representative direction on the specific transmission resources in MU-MIMO.
This invention relates to wireless communication systems, specifically improving multi-user multi-input multi-output (MU-MIMO) performance by reducing interference between devices sharing the same transmission resources. The problem addressed is interference in MU-MIMO systems where multiple devices may experience similar channel conditions, leading to degraded performance. The communication device includes circuitry to receive a reference signal from a base station to assess the channel between the device and the base station. The circuitry then determines a representative direction of the channel that meets a predetermined condition, which serves as a key parameter for identifying the channel's characteristics. Additional parameters reflecting the channel's properties are also determined, including the identity of this representative direction. The device acquires scheduling information from the base station for data transmission, specifying the transmission resources to be used. In MU-MIMO operations, the base station calculates a precoding matrix based on the channel characteristics reported by the device. This precoding matrix is designed to minimize interference from other devices that share the same representative direction on the same transmission resources, thereby improving overall system efficiency and reliability. The solution enhances MU-MIMO performance by leveraging directional channel information to optimize resource allocation and interference mitigation.
2. The communication device according to claim 1 , wherein the circuitry is further configured to determine a matching degree of the channel with one or more reference directions based on the channel, the matching degree is determined according to channel gain with respective reference direction.
A communication device includes circuitry configured to determine a matching degree of a communication channel with one or more reference directions. The circuitry analyzes the channel to compute the matching degree based on the channel gain associated with each reference direction. This allows the device to assess how well the channel aligns with predefined directional references, which can be used for beamforming, antenna selection, or spatial diversity in wireless communication systems. The device may also include additional circuitry to process the channel data, such as filtering or amplifying signals, to improve the accuracy of the matching degree calculation. The reference directions may be predefined based on antenna array configurations or environmental conditions, enabling the device to optimize signal transmission and reception by selecting the best-matching direction. This technology is particularly useful in millimeter-wave or high-frequency communication systems where directional accuracy is critical for maintaining reliable links. The matching degree determination helps in dynamically adapting the device's communication strategy to changing channel conditions, improving overall system performance.
3. The communication device according to claim 1 , wherein the reference directions are relevant to an antenna array configuration of the wireless communication system.
A wireless communication device includes an antenna array for transmitting and receiving signals in a wireless communication system. The device determines reference directions for beamforming or signal processing based on the specific configuration of the antenna array. The reference directions are aligned with the physical or logical arrangement of the antenna elements, ensuring optimal signal transmission and reception. By correlating the reference directions with the antenna array's structure, the device improves beamforming accuracy, reduces interference, and enhances overall communication performance. The system dynamically adjusts the reference directions in response to changes in the antenna array's configuration, such as reconfiguration for different frequency bands or beam patterns. This approach ensures adaptability to varying environmental conditions and communication requirements, maintaining reliable connectivity in diverse scenarios. The device may also incorporate additional signal processing techniques to further refine beamforming based on the reference directions, optimizing signal quality and throughput.
4. The communication device according to claim 1 , wherein the circuitry is configured to search the reference directions one by one to determine the representative direction for the communication device.
A communication device includes circuitry configured to determine a representative direction for the device by searching through a set of reference directions. The device operates in a wireless communication environment where directional antennas or beamforming techniques are used to optimize signal transmission and reception. A key challenge in such systems is efficiently determining the optimal direction for communication, especially in dynamic environments where signal conditions change frequently. The circuitry in the device systematically evaluates each reference direction to identify the most suitable direction for communication. This involves analyzing signal quality metrics such as signal strength, signal-to-noise ratio, or other performance indicators for each direction. By sequentially testing each reference direction, the device can accurately determine the representative direction that provides the best communication performance. This approach ensures reliable and efficient wireless communication by dynamically adapting to changing conditions. The circuitry may also include additional features such as beamforming capabilities, signal processing algorithms, or adaptive antenna arrays to further enhance communication performance. The device is particularly useful in applications requiring high-speed, low-latency, and reliable wireless connectivity, such as 5G networks, IoT devices, or mobile communications.
5. The communication device according to claim 4 , wherein the circuitry is configured to determine multiple reference directions satisfying the predetermined condition as representative directions.
A communication device includes circuitry configured to determine a representative direction for signal transmission or reception based on a predetermined condition. The circuitry analyzes signal characteristics, such as signal strength or quality, to identify one or more reference directions that meet the condition. If multiple reference directions satisfy the condition, the circuitry selects all of them as representative directions. This allows the device to optimize signal performance by considering multiple favorable directions rather than a single direction. The circuitry may also adjust transmission or reception parameters, such as beamforming weights or antenna configurations, based on the determined representative directions. The device may further include an antenna array and a controller to manage signal processing and direction determination. This approach improves communication reliability and efficiency by dynamically adapting to varying signal conditions.
6. The communication device according to claim 3 , wherein the circuitry is configured to receive the antenna array configuration from the base station for determining the reference directions, the antenna array configuration at least comprises antenna number.
A communication device includes circuitry configured to determine reference directions for beamforming based on an antenna array configuration received from a base station. The antenna array configuration specifies at least the number of antennas in the array. The circuitry uses this information to establish reference directions for transmitting or receiving signals, optimizing beamforming performance. The device may also include an antenna array with multiple antenna elements, where the circuitry adjusts beamforming parameters based on the reference directions. The base station provides the antenna array configuration to ensure alignment between the device and the network, improving signal quality and reducing interference. This approach enhances communication efficiency by dynamically adapting to varying antenna setups. The circuitry may further process the configuration to derive additional parameters, such as antenna spacing or polarization, to refine beamforming accuracy. The system is particularly useful in wireless networks where precise beam alignment is critical for high-speed data transmission.
7. The communication device according to claim 1 , wherein the precoding matrix is calculated based on the channel characteristics of the communication device and the other communication device with zero-forcing algorithm.
This invention relates to wireless communication systems, specifically improving signal transmission between devices using precoding techniques. The problem addressed is optimizing signal quality and reducing interference in multi-device communication environments. The invention involves a communication device that calculates a precoding matrix to enhance signal transmission. The precoding matrix is determined based on channel characteristics between the communication device and another device, using a zero-forcing algorithm. This algorithm minimizes interference by nulling out signals intended for other devices, thereby improving signal integrity. The communication device applies this precoding matrix to transmitted signals, ensuring efficient and reliable data transfer. The system may include multiple communication devices, each calculating their own precoding matrices to coordinate transmissions and reduce interference. The zero-forcing algorithm leverages channel state information to optimize signal processing, enhancing overall communication performance in dense wireless networks. This approach is particularly useful in scenarios with high device density, such as urban wireless networks or IoT deployments, where interference management is critical. The invention aims to improve data rates, reduce errors, and enhance spectral efficiency in wireless communications.
8. The communication device according to claim 1 , wherein each reference direction corresponds to a DFT vector.
A communication device is designed to improve signal processing in wireless communication systems, particularly for applications requiring high spectral efficiency and low interference. The device addresses challenges in accurately determining signal directions in multi-path environments, where traditional methods may suffer from ambiguity or high computational complexity. The invention involves a system where each reference direction corresponds to a Discrete Fourier Transform (DFT) vector. This approach leverages the properties of DFT vectors to represent signal directions in a structured manner, enabling efficient beamforming and spatial filtering. The DFT vectors are used to model the angular spread of signals, allowing the device to distinguish between different signal paths with improved precision. By associating each reference direction with a DFT vector, the system can perform rapid and accurate direction-of-arrival (DOA) estimation, which is critical for beamforming and interference mitigation in advanced wireless networks. The use of DFT vectors simplifies the computational requirements while maintaining high resolution in direction estimation, making the device suitable for applications such as 5G and beyond, where precise spatial processing is essential. The invention enhances the reliability and performance of wireless communication by providing a robust method for direction estimation and beamforming in complex propagation environments.
9. The communication device according to claim 1 , wherein the communication device is implemented as a user equipment.
A communication device is designed to enhance wireless communication efficiency in a network environment. The device includes a receiver configured to receive a downlink signal from a base station, a transmitter configured to transmit an uplink signal to the base station, and a controller. The controller is configured to determine a transmission parameter for the uplink signal based on the downlink signal and adjust the transmission parameter to optimize communication performance. The transmission parameter may include power control, modulation and coding scheme (MCS), or resource allocation settings. The device may also include a memory to store configuration data and a display for user interaction. In some implementations, the communication device is a user equipment (UE), such as a smartphone, tablet, or IoT device, operating in a cellular network. The controller dynamically adjusts transmission parameters to improve signal quality, reduce interference, and enhance spectral efficiency. The device may also support multiple communication protocols, including 5G, LTE, or Wi-Fi, and adapt its transmission strategy based on network conditions. The goal is to achieve reliable and efficient wireless communication while minimizing power consumption and resource usage.
10. A communication method for use in a wireless communication system, comprising: receiving a reference signal from a base station to determine a channel between the communication device and the base station; determining a reference direction satisfying a predetermined condition as a representative direction of the channel; determining one or more parameters reflecting channel characteristic(s) associated with the communication device, the one or more parameters including identity of the representative direction; and acquiring scheduling information from the base station for data transmission through the channel on specific transmission resources, wherein Multi-User Multi-Input Multi-Output MU-MIMO is supported, a precoding matrix is calculated based on the channel characteristic(s), to reduce interference by other communication device having identical representative direction on the specific transmission resources in MU-MIMO.
This invention relates to wireless communication systems, specifically improving data transmission efficiency in Multi-User Multi-Input Multi-Output (MU-MIMO) environments. The problem addressed is interference between devices sharing the same transmission resources, which degrades performance in MU-MIMO systems. The method involves a communication device receiving a reference signal from a base station to assess the channel between them. The device then identifies a reference direction that meets a predetermined condition, designating it as the representative direction of the channel. Next, the device determines parameters reflecting the channel characteristics, including the identity of this representative direction. These parameters are used to calculate a precoding matrix, which helps reduce interference from other devices with the same representative direction when sharing the same transmission resources in MU-MIMO. The base station provides scheduling information for data transmission, ensuring efficient resource allocation while minimizing interference. The approach enhances spectral efficiency and reliability in MU-MIMO communications by optimizing precoding based on channel characteristics and directional information.
11. The communication method according to claim 10 , further comprising determining a matching degree of the channel with one or more reference directions based on the reference signal, and wherein the matching degree is determined according to channel gain with respective reference direction.
This invention relates to wireless communication systems, specifically methods for optimizing communication performance by evaluating channel characteristics. The problem addressed is the need to efficiently determine the best communication direction or channel configuration in dynamic environments where signal quality varies due to interference, multipath effects, or mobility. The method involves transmitting a reference signal over a communication channel and analyzing its properties to assess channel quality. A key aspect is determining the matching degree of the channel with one or more predefined reference directions. This matching degree is calculated based on the channel gain observed in each reference direction, which indicates how well the channel aligns with these directions. By comparing the gains, the system can identify the optimal direction for data transmission, improving signal strength and reducing interference. The technique may also include adjusting transmission parameters, such as beamforming weights or antenna configurations, based on the matching degree results. This ensures that the communication link is maintained with the highest possible quality. The method is particularly useful in systems like 5G or mmWave communications, where directional antennas and beamforming are critical for performance. By dynamically evaluating channel conditions, the system can adapt to changing environments, enhancing reliability and throughput.
12. The communication method according to claim 10 , wherein the reference directions are relevant to an antenna array configuration of the wireless communication system, the method comprises receiving the antenna array configuration from the base station for determining the reference directions, the antenna array configuration at least comprises antenna number.
This invention relates to wireless communication systems, specifically improving communication efficiency by optimizing reference directions for signal transmission or reception based on antenna array configurations. The problem addressed is the need for accurate and adaptable reference directions in wireless systems to enhance signal quality and reduce interference, particularly in environments with dynamic channel conditions. The method involves determining reference directions for wireless communication based on an antenna array configuration provided by a base station. The antenna array configuration includes at least the number of antennas in the array, which is used to calculate or adjust the reference directions. By aligning these directions with the physical or logical arrangement of the antenna array, the system can optimize beamforming, spatial multiplexing, or other directional communication techniques. This ensures that signals are transmitted or received in the most efficient manner, improving throughput and reliability. The base station transmits the antenna array configuration to the communicating device, which then uses this information to derive the reference directions. This approach allows for dynamic adaptation to different antenna setups, supporting various deployment scenarios such as massive MIMO, beamforming, or hybrid beamforming systems. The method enhances system performance by leveraging the antenna array's spatial characteristics to mitigate interference and improve signal strength.
13. The communication method according to claim 10 , wherein the method comprises searching the reference directions one by one to determine the representative direction for the communication device.
This invention relates to wireless communication systems, specifically improving directional communication between devices. The problem addressed is efficiently determining an optimal communication direction in environments where multiple reference directions are available, such as in beamforming or directional antenna systems. The method involves sequentially evaluating each reference direction to identify the most suitable representative direction for the communication device. This ensures reliable and efficient data transmission by selecting the best path based on signal quality, interference levels, or other performance metrics. The process may involve scanning or testing each direction individually, comparing their suitability, and selecting the one that provides the best communication conditions. This approach is particularly useful in scenarios where devices need to dynamically adapt to changing environmental conditions or interference patterns. The method may be implemented in various wireless technologies, including millimeter-wave communications, 5G networks, or other high-frequency systems where directional accuracy is critical. By systematically evaluating reference directions, the invention enhances communication reliability and throughput while minimizing latency and resource usage.
14. The communication method according to claim 13 , wherein the method comprises determining multiple reference directions satisfying the predetermined condition as representative directions.
This invention relates to communication methods, specifically for determining representative directions in a network environment. The problem addressed is efficiently identifying key directional references that meet specific conditions, which is useful for optimizing signal transmission, beamforming, or spatial diversity in wireless communications. The method involves analyzing directional data to identify multiple reference directions that satisfy a predetermined condition. These reference directions are then selected as representative directions for further use in the communication system. The predetermined condition could relate to signal strength, interference levels, or other performance metrics. By determining multiple such directions, the system can enhance reliability and adaptability in dynamic environments. The process may include scanning or measuring directional signals, comparing them against the condition, and selecting the best candidates. This approach improves upon traditional single-direction methods by leveraging multiple representative directions, which can reduce errors and improve coverage. The invention is particularly useful in scenarios requiring precise directional control, such as millimeter-wave communications or beamforming in 5G networks. The method ensures robust performance by dynamically adjusting to changing conditions while maintaining efficiency.
15. The communication method according to claim 10 , wherein the precoding matrix is calculated based on the channel characteristics of the communication device and the other communication device with zero-forcing algorithm.
This invention relates to wireless communication systems, specifically improving data transmission efficiency by optimizing precoding techniques. The problem addressed is the need for efficient signal transmission in multi-device environments where interference and channel variations degrade performance. The solution involves a communication method where a precoding matrix is dynamically calculated to enhance signal quality. The method includes determining channel characteristics between a communication device and another device, then applying a zero-forcing algorithm to compute the precoding matrix. Zero-forcing minimizes interference by nulling out unwanted signals from other devices, improving signal-to-interference-plus-noise ratio (SINR). The precoding matrix is applied to transmitted signals, ensuring they are optimized for the specific channel conditions between the devices. The method may also involve estimating channel state information (CSI) to refine the precoding process. By continuously adapting the precoding matrix based on real-time channel conditions, the system achieves higher data rates and reliability. This approach is particularly useful in multi-user MIMO (Multiple-Input Multiple-Output) systems where multiple devices share the same frequency resources. The invention enhances wireless communication by reducing interference and improving spectral efficiency, making it suitable for 5G and beyond networks where high data rates and low latency are critical.
16. The communication method according to claim 10 , wherein each reference direction corresponds to a DFT vector.
This invention relates to communication methods involving directional signal processing, specifically using Discrete Fourier Transform (DFT) vectors to represent reference directions. The problem addressed is improving signal transmission and reception in wireless communication systems by efficiently managing directional references. The method involves assigning a unique DFT vector to each reference direction, allowing precise spatial filtering and beamforming. DFT vectors are mathematical representations that enable the system to focus energy in specific directions, enhancing signal quality and reducing interference. The technique is particularly useful in multi-antenna systems, such as massive MIMO or beamforming applications, where directional accuracy is critical. By mapping each reference direction to a DFT vector, the system can dynamically adjust transmission and reception patterns to optimize performance. This approach improves spectral efficiency, reduces latency, and enhances reliability in wireless communications. The method may also include additional steps like signal preprocessing, channel estimation, and adaptive beamforming to further refine directional accuracy. The use of DFT vectors simplifies the implementation of directional references while maintaining high precision, making it suitable for modern wireless standards like 5G and beyond.
17. A communication device for use in a wireless communication system, comprising: circuitry configured to receive a reference signal from a base station to determine a channel between the communication device and the base station; determine a reference direction satisfying a predetermined condition as a representative direction of the channel; determine one or more parameters reflecting channel characteristic(s) associated with the communication device, the one or more parameters including identity of the representative direction; and acquire scheduling information from the base station for data transmission through the channel on specific transmission resources, wherein Multi-User Multi-Input Multi-Output MU-MIMO is supported, the specific transmission resources are avoided to be scheduled to other communication device having identical representative direction.
This invention relates to wireless communication systems, specifically improving channel estimation and resource allocation in Multi-User Multi-Input Multi-Output (MU-MIMO) environments. The problem addressed is efficient channel characterization and scheduling to avoid interference between devices with similar channel directions. The communication device includes circuitry to receive a reference signal from a base station, enabling channel estimation between the device and the base station. The circuitry identifies a reference direction that meets a predetermined condition, using this as a representative direction for the channel. It then determines parameters reflecting channel characteristics, including the identity of this representative direction. The device acquires scheduling information from the base station for data transmission, ensuring the assigned transmission resources are not allocated to other devices with the same representative direction. This prevents interference in MU-MIMO systems by avoiding resource conflicts between devices with similar channel directions. The solution enhances spectral efficiency and reduces interference in dense wireless networks.
18. A communication device for use in a wireless communication system, comprising: circuitry configured to receive a reference signal from a base station to determine a channel between the communication device and the base station; determine one or more reference vectors satisfying a predetermined condition as one or more representative vectors of the channel; determine one or more parameters reflecting channel characteristic(s) associated with the communication device, the one or more parameters including the representative vectors or identity of the representative vectors; and acquire scheduling information from the base station for data transmission through the channel on specific transmission resources, wherein Multi-User Multi-Input Multi-Output MU-MIMO is supported, a precoding matrix is calculated based on the channel characteristic(s), to reduce interference by other communication device having identical representative vectors on the specific transmission resources in MU-MIMO.
This invention relates to wireless communication systems, specifically improving data transmission efficiency and reducing interference in Multi-User Multi-Input Multi-Output (MU-MIMO) environments. The problem addressed is interference between multiple devices sharing the same transmission resources, which degrades performance in MU-MIMO systems. The communication device includes circuitry that receives a reference signal from a base station to assess the channel between the device and the base station. The circuitry then determines one or more reference vectors that meet a predetermined condition, selecting these as representative vectors of the channel. These vectors or their identities are used as parameters reflecting the channel characteristics of the device. The device acquires scheduling information from the base station for data transmission on specific resources. In MU-MIMO operation, the base station calculates a precoding matrix based on the channel characteristics to minimize interference from other devices with identical representative vectors sharing the same transmission resources. This approach ensures efficient resource allocation while mitigating interference in multi-user scenarios.
19. A communication device for use in a wireless communication system, comprising: circuitry configured to receive a reference signal from a base station to determine a channel between the communication device and the base station; determine one or more reference vectors satisfying a predetermined condition as one or more representative vectors of the channel; determine one or more parameters reflecting channel characteristic(s) associated with the communication device, the one or more parameters including the representative vectors or identity of the representative vectors; and acquire scheduling information from the base station for data transmission through the channel on specific transmission resources, wherein Multi-User Multi-Input Multi-Output MU-MIMO is supported, the specific transmission resources are avoided to be scheduled to other communication device having identical representative direction.
This invention relates to wireless communication systems, specifically improving channel estimation and resource allocation in Multi-User Multi-Input Multi-Output (MU-MIMO) environments. The problem addressed is efficient channel characterization and scheduling to avoid interference between users with similar channel directions. The communication device includes circuitry that receives a reference signal from a base station to assess the channel between them. It then determines one or more reference vectors that meet a predefined condition, using these as representative vectors of the channel. The device also calculates parameters reflecting channel characteristics, which may include the representative vectors themselves or identifiers of these vectors. Using these parameters, the device acquires scheduling information from the base station for data transmission on specific transmission resources. The system supports MU-MIMO, where the base station avoids assigning the same transmission resources to other devices with identical representative directions, thereby reducing interference. This approach enhances spectral efficiency by ensuring that users with similar channel directions do not share the same resources, while maintaining accurate channel representation through the use of representative vectors. The solution is particularly useful in dense wireless networks where interference management is critical.
20. The communication device according to claim 19 , wherein the communication device is implemented as a user equipment, the circuitry is configured to determine a covariance matrix of the channel and calculate a similarity degree of the spatial covariance matrix and the reference vectors as the matching degree.
This invention relates to wireless communication systems, specifically improving channel estimation and beamforming in user equipment (UE) devices. The problem addressed is efficiently determining optimal beamforming vectors by comparing a spatial covariance matrix of the communication channel with predefined reference vectors. The solution involves a communication device, such as a UE, with circuitry that calculates a covariance matrix representing the channel's spatial characteristics. The circuitry then computes a similarity degree between this covariance matrix and stored reference vectors to determine the best matching reference vector. This matching degree is used to select or adjust beamforming parameters, enhancing signal quality and reducing computational overhead. The reference vectors may be predefined based on known channel conditions or learned from historical data. The system avoids complex real-time computations by leveraging precomputed reference vectors, improving efficiency in dynamic wireless environments. The invention is particularly useful in scenarios requiring rapid adaptation to changing channel conditions, such as in 5G and beyond networks.
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March 10, 2020
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